Seasonal plant biomass moist acidic tussock tundra, 1983, Arctic LTER, Toolik Lake, Alaska.

Abstract: 

Biomass in tussock tundra experimental plots near Toolik Lake, North Slope, AK (68 degrees 38N, 149derees 34W). There were five harvests in 1983. This file is the May 21-22, 1983 harvest.

Project Keywords: 

Data set ID: 

1374

EML revision ID: 

16

Short name: 

1983gsttbm
People

Keywords: 

Arctic LTER keywords: 

Taxa: 

Dates

Date Range: 

Saturday, May 21, 1983 to Tuesday, August 23, 1983

Publication Date: 

Wednesday, December 12, 1990

Methods: 

Plots were setup in June 1981 with annual fertilization treatments of 10 g/m2 Nitrogen (as NH4NO3) and 5 g/m2 Phosphorous (as triple superphosphate) were applied. Greenhouses and shade houses were annually set up in late May or early June and removed in the end of August or early September. There are 4 replicate blocks, each containing 1 replicate of each of the following treatments.
Control (CT)
Fertilized (NP)
Greenhouse (GH)
Greenhouse fertilized (GHNP)
Shade (SH)

Notes: For 1983-84 harvests in the original file, Quadrats Q1 - Q5=Block 1, Q6 - Q10=B2, Q11 - Q15=B3, Q16 - Q20=B4. For example, Q6 from 1983 is the same as B2Q1 in 1989. In this file the quadrats were renamed to B1Q1 style where the number following the B is block number and the number following Q is quadrat number.
Missing values are represented with blank spaces.

Sampling Description.

Biomass quadrats, size 20x20 cm, were taken from Toolik tussock site. Five quadrats were taken from each of four blocks. All aboveground biomass plus belowground stems and rhizomes were clipped in 20x20 cm quadrats. Five quadrats were randomly located along line transects in each of four replicate blocks in each treatment. Aboveground biomass is considered "within" the quadrat if it is associated with a meristem that is within the quadrat. Quadrats were sorted within 24 hours into species and then into tissue type. Depending on the harvest, tissue types can be broad categories, i.e. above and below, or more detailed, i.e. inflorescences, new growth, old growth, etc. They were then dried at 50-70 degrees C in a drying oven. After several days in the oven samples were weighed to nearest milligram. Samples are then returned to Woods Hole for nutrient analysis. Details are given in Shaver and Chapin (Ecological Monographs, 61(1), 1991, pg. 1.)
There were five harvests in 1983. Below are the original harvest numbers, harvest dates and the old filenames. The data was combined in 2004 with all the harvest now in file 1983gsttbm.xls
Harvest Treatment Date Old Filename = Filename May 1994

4 control May 21, 22, 1983 TLK83CT4.wkq 83gsttb4.xls
4 fertilized May 21, 22, 1983 TLK83FT4.wkq 83gsttb4.xls
4 greenhouse May 23-25, 1983 TLK83GH4.wkq 83gsttb4.xls
4 greenhouse fert. May 23-25, 1983 TK83GHF4.wkq 83gsttb4.xls
4 shade May 22, 24, 25, 1983 TLK83SH4.wkq 83gsttb4.xls
5 control June 14, 15, 1983 TLK83CT5.wkq 83gsttb5.xls
5 fertilized June 16, 17, 1983 TLK83FT5.wkq 83gsttb5.xls
6 control July 1-4, 1983 TLK83CT6.wkq 83gsttb6.xls
6 fertilized July 1-4, 1983 TLK83FT6.wkq 83gsttb6.xls
7 control July 26, 27, 31, 1983 TLK83CT7.wkq 83gsttb7.xls
7 fertilized July 26-28, Aug.1, 83 TLK83FT7.wkq 83gsttb7.xls
7 greenhouse July 28-30, Aug. 2-3, 83 TLK83GH7.wkq 83gsttb7.xls
7 greenhouse fert. July 28, 29, Aug. 2-4, 83 TK83GHF7.wkq 83gsttb7.xls
7 shade July 30-31, Aug. 3-4, 83 TLK83SH7.wkq 83gsttb7.xls
8 control August 20-22, 1983 TLK83CT8.wkq 83gsttb8.xls
8 fertilized August 22, 23, 1983 TLK83FT8.wkq 83gsttb8.xls
DATA ENTRY:
Data were entered into Quattro spreadsheets as weights in grams, to the nearest milligram. Categories are same as on data sheets
Missing values are represented with blank spaces.
Tissue categories codes: v0 is a new graminoid tiller that does not have any green tip. CYS is graminoid current year senescence.
Biomass categories:
New Above: includes blade, sheath, v0, CYS blade, CYS sheath, inflorescence, inflorescence bud, new leaves, new stems, and new above (for Forbs and mosses).
Old Above: includes old leaves and old stems.
Below: includes below stems, rhizome and below (for forbs).

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

Use of the data requires acceptance of the data use policy --> Arctic LTER Data Use Policy

To cite this data set see the citation example on the LTER Network Data Portal page for this data set.

File 1983gsttbm.csv

Seasonal plant... File Details

Office spreadsheet icon 1983gsttbm.xls

Excel file with... File Details

Variables Details

(Variables names are in the first line/row of the CSV file and Excel data sheet.)
Date
  • Label: Date
  • Definition: Dates that plot was sampled. This is the average date. Harvests typically last 4-5 days. See methods for detail harvest dates.
  • Type: Date/time
  • Date format: dd-mmm-yyyy
  • Missing values: None specified
Site
  • Label: Site
  • Definition: Site of harvest
  • Type: Nominal
  • Missing values: None specified
Treatment
  • Label: Treatment
  • Definition: Experimental treatment plot. See methods for description.
  • Type: Nominal
  • Missing values: None specified
Growth Form
  • Label: Growth Form
  • Definition: Growth form of plant species
  • Type: Nominal
  • Missing values: None specified
Species
  • Label: Species
  • Definition: Plant species or lumped group of species sampled.
  • Type: Nominal
  • Missing values: None specified
Tissue
  • Label: Tissue
  • Definition: Type of plant part sampled.
  • Type: Nominal
  • Missing values: None specified
Biomass Categroy
  • Label: Biomass Categroy
  • Definition: Biomass category used for subtotals. See methods for more information
  • Type: Nominal
  • Missing values: None specified
B1Q1
  • Label: B1Q1
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat. The B stands for block and the number following the B is the block number. The Q stands for quadrat, with the number following the Q the quadrat number.
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q2
  • Label: B1Q2
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q3
  • Label: B1Q3
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q4
  • Label: B1Q4
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q5
  • Label: B1Q5
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q1
  • Label: B2Q1
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q2
  • Label: B2Q2
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q3
  • Label: B2Q3
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q4
  • Label: B2Q4
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q5
  • Label: B2Q5
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q1
  • Label: B3Q1
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q2
  • Label: B3Q2
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q3
  • Label: B3Q3
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q4
  • Label: B3Q4
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q5
  • Label: B3Q5
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q1
  • Label: B4Q1
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q2
  • Label: B4Q2
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q3
  • Label: B4Q3
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q4
  • Label: B4Q4
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q5
  • Label: B4Q5
  • Definition: Oven dried weight (60 degrees C) of sample collected in a quadrat
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Average
  • Label: Average
  • Definition: The average of all quadrats for that species and tissue type
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Std. Err.
  • Label: Std. Err.
  • Definition: The Standard Error of the average
  • Type: Physical quantity
  • Unit: gramPerFourHundredthMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Count
  • Label: Count
  • Definition: The number of samples used to calculate the Average and Std. Err.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q1gm2
  • Label: B1Q1gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q2gm2
  • Label: B1Q2gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q3gm2
  • Label: B1Q3gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q4gm2
  • Label: B1Q4gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B1Q5gm2
  • Label: B1Q5gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q1gm2
  • Label: B2Q1gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q2gm2
  • Label: B2Q2gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q3gm2
  • Label: B2Q3gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q4gm2
  • Label: B2Q4gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B2Q5gm2
  • Label: B2Q5gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q1gm2
  • Label: B3Q1gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q2gm2
  • Label: B3Q2gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q3gm2
  • Label: B3Q3gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q4gm2
  • Label: B3Q4gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B3Q5gm2
  • Label: B3Q5gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q1gm2
  • Label: B4Q1gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q2gm2
  • Label: B4Q2gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q3gm2
  • Label: B4Q3gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q4gm2
  • Label: B4Q4gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
B4Q5gm2
  • Label: B4Q5gm2
  • Definition: Biomass in quadrat converted to g/m^2
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Average g/m^2
  • Label: Average g/m^2
  • Definition: The average of all quadrats for that species and tissue type
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
StdERR g/m^2
  • Label: StdERR g/m^2
  • Definition: The Standard Error of the average
  • Type: Physical quantity
  • Unit: gramPerMeterSquared
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured
Count g/m^2
  • Label: Count g/m^2
  • Definition: The number of samples used to calculate the Average and Std. Err.
  • Type: Physical quantity
  • Unit: number
  • Maximum: Not specified
  • Minimum: Not specified
  • Precision: Not specified
  • Missing values:
    • #N/A = Missing or Not Measured